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논문 기본 정보

자료유형
학술저널
저자정보
장형석 (Hanyang University) 김재현 (Hanyang University) 전진용 (Hanyang University)
저널정보
한국소음진동공학회 한국소음진동공학회논문집 한국소음진동공학회논문집 제24권 제2호
발행연도
2014.2
수록면
146 - 153 (8page)

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초록· 키워드

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This study investigates the effects of seat-design elements such as seating arrangement, shape, and height on speech privacy in high-speed trains. For the evaluation of speech privacy, acoustic simulation software was used to reproduce room acoustical conditions in passenger cars on the basis of in-situ measurement data. The influences of speech source directivity and source height on privacy distance (rP) were investigated, and it was found that rP determined using an omni-directional source was relatively shorter than that determined using a directional source. It was also found that rP decreased when the source height was lower than the height of the seat-back because the seat-back blocked the propagation of speech from the sound source. The effect of seating arrangement was not significant when comparing the vis-a-vis seating and one-side seating arrangements. In addition, among the alternative seat-designs, the seats that block the space between the seats and cover the space near the ear were found to show significantly enhanced speech privacy in high-speed train passenger cars.

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ABSTRACT
1. 서론
2. 연구방법
3. 음원 지향성 및 높이의 영향
4. 의자 설계요소에 따른 영향
5. 결론
References

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